Magic 2 / Apple on/off toggle switch

Has anyone installed a toggle switch for their magic 2/apple modded ps2. Id like to disable the chip after game has booted. If someone could tell me how, well which wire supplies the power to the chip that'd be great. Thanx

NEITHER, DO NOT SWITCH A POWER LINE TO GROUND AS YOU WILL POP A FUSE........

Remove the link cable from the power line point on the PCB to the +5v pin on the magic..

Place the switch here in the place of the above link.
One side of the switch to the power line point and the other side of the switch to the +5v pad on the Magic. - this will then just toggle the power to the Magic on or off and therefore disabling it....

Hi, thanx for the reponse. I figured the switch need to be ground, thanx for clearifying that. OK, my question is, where is the power line point. Also, when I wire in the switch it will go power line - switch - 5v correct??The diagram can be found here.Thanx http://www.titanchip.it/magic-chip/v7diagram.htm